December : +1
January:-3 to -5
Feb: +1
Overall: -0.33 to -1
Snowfall for DCA BWI IAD 14-18”
The primary analog years are 1986, 2002, 2013, 2021.
The secondary are 1966, 1977,1983, 2008, 2018’.
Our analog method is mostly occurrent weather from this year. How we apply that formula is hard to explain
There are some good years there. I do think chance of a big 8”+ is higher this year at about 30% instead of 15%.
I hope Isotherm and Raleigh , Ma*t, Ray,HM and others will post their outlook in this thread